Understanding Network Security
I was wondering if anyone might know of good reference material, books websites etc that discuss network security issues in layman terms. So far most of what I have found is a lot like trying to learn Greek, with me understanding little of what I read.
I would like to set up a dedicated Linux box as a firewall and would like to have a deeper understanding of the different types of configurations that are possible. Hopefully I will find something that deals with these issues in an understandable way and also discusses the ramifications of one method over another.
I run a dual boot system and most of the firewalls I have used on the Windows side are very confusing to me. A lot of the time they give you a pop up that informs you that some cryptically named program is trying to access the network or the internet and wants to know if I want it to or not, 99% of the time I have not idea if it is a legitimate program or not. I realize that this is probably a separate issue (knowing how to identify programs and processes that should have access from those that should not) from setting up a firewall and basic network security but I know that they are related.
Also does anyone know if it is possible to build a Linux firewall and run it in a VM?
If anyone has any information concerning these issues that you can point me to, I would greatly appreciate it.